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Space & Orbital Mechanics Quizizz

Total questions: 70

Worksheet time: 51mins

Name
Class
Date
1.

What is the Universe? Hint: It isn't 42

(a)  

2.

What is a light year

a)

Distance light travels in a year

b)

~6 trillion miles

c)

~10 billion miles

d)

~60 billion trillion miles

e)

The farthest we can see

3.

A galaxy is...

a)

an assembly of stars, related matter, and gas.

b)

held together by mutual gravity.

c)

always a disk shape like this image.

d)

also known as a milky way.

4.

A star is a sphere of (a)   .

5.

What is a planet?

a)

An orbiting body large enough to become round due to its own gravity

b)

Any celestial body orbiting a star

c)

An orbiting body large enough to dominate the vicinity of its orbit

d)

The nine bodies that revolve around the sun and their moons

6.

Why is Pluto now considered a dwarf planet by the IAU?

a)

It isn't large enough to be round by the force of its own gravity

b)

It isn't the dominate body in it's orbit

c)

It is smaller than India and the IAU bases it's decisions on size comparison to continents on Earth

d)

It technically doesn't orbit the sun.

7.

What is a moon?

a)

A natural satellite of a planet

b)

Any object in orbit

c)

A object that is no bigger than 1/4th the size of the body it orbits

d)

A naturally occurring satellite that is smaller than a dwarf planet

8.

When we look out into space, we...

a)

look back in time.

b)

stare into a void of nothing.

c)

see objects as they are.

d)

see only the stars of far off galaxies.

9.

Our moon's average distance from earth is (a)   miles.

10.

The gas and dust of a nebula signify...

a)

Death

b)

Birth

c)

Remains of old stars

d)

Raw materials for new stars

e)

The presence of a black hole

11.

Penzias and Wilson, from Bell Labs, climbed into a "Horn Antenna" to scrub pigeon droppings with brushes in attempts to remove this noise. Turns out the noise was the CMB. What is CMB?

a)

Cosmic Microwave Background

b)

Radio waves diminished from light

c)

Calcified Matter Buildup

d)

Diminished light from the earliest times in our universe

e)

Commercially Modified Broadband

12.

What is space junk?

a)

All objects in an orbit

b)

Natural objects like asteroids and comets

c)

Artificial objects like broken satellites and paint flakes

d)

Human Refuse

13.

What does the acronym LEO mean?

(a)  

14.

What does the acronym GEO mean?

(a)  

15.

How many miles per hour OR kilometers per second is LEO debris traveling?

(a)  

16.

Monitoring equipment onboard spacecraft can track the millions of space junk objects that are smaller than (a)   centimeters.

17.

Telescopes and radar track more than 100,000 objects that measure over (a)   centimeters in size, whereas optical tools can track the 11,000 objects that are larger than 10 centimeters in size.

18.

The risk of being struck by orbital debris is...

a)

1 in 1,000,000,000

b)

1 in 1,400,000

c)

1 in 20,000,000

d)

1 in 7,000,000,000

e)

1 in 2,600,000,000

19.

With roots back to 1960, what year did the UN establish the Conference of Disarmament?

(a)  

20.

The UN established a committee in (a)   to help with non-military use of space coordination.

21.

The Office of Outer Space Affairs does which of the following?

a)

Promote peaceful use of space for all humankind

b)

Keep a registry of objects launched in space

c)

Promote international cooperation and solicit the exchange of scientific information

d)

Contact with extra terrestrial entities

e)

Exchange political contact information about scientific discoveries abroad in regions they observe as an NGO

22.

Why do we need space law?

a)

To responsibly develop space for the good of humankind

b)

To provide a platform on which humans can develop space travel within the bounds of a civilized society

c)

To prevent the degradation of order among internationally cooperating entities in space

d)

To responsibly allow for the development of weapon systems in space

e)

To place an emphasis on the betterment of the UNs understanding of space piracy

23.

What is an orbit?

a)

Motion of one body around another, where one is typically very large in relation to the other

b)

A smaller body fixed in space oscillating from a larger body interacting with it

c)

Any motion of two bodies as they pass through a centralized fixed point in space

d)

When a celestial body has a tidal effect on a larger or smaller body that may or may not be fixed in space

24.

Select all of the following that describe the term SATELLITE.

a)

Human-made objects only

b)

Naturally occurring objects only

c)

Anything orbiting another body

d)

Planets in our solar system

e)

Moons around a planet

25.

There has been an interest in orbital motion dating all the way back to the times of ______ _______.

(a)  

26.

Aristotle and his peers had a keen interest in how the heavens moved in our night sky, and he in particular is well known for studying the motion of these.

(a)  

27.

Aristotle and the people of ancient Greece believe that the Earth was fixed in space and the heavenly bodies moved around it. This is known as what.

a)

Geocentric

b)

Geofixed

c)

Centralized Earth Theory

d)

Geolized Centricity

e)

Orbital Geocentric Theory

28.

This historical figure lived between 1473 and 1543.

a)

Nicolaus Copernicus

b)

Tycho Brahe

c)

Johannes Kepler

d)

Robert Hooke

e)

Isaac Newton

29.

This historical figure lived between 1546 and 1601.

a)

Nicolaus Copernicus

b)

Tycho Brahe

c)

Johannes Kepler

d)

Robert Hooke

e)

Isaac Newton

30.

This historical figure lived between 1571 and 1630.

a)

Nicolaus Copernicus

b)

Tycho Brahe

c)

Johannes Kepler

d)

Robert Hooke

e)

Isaac Newton

31.

This historical figure lived between 1635 and 1703.

a)

Nicolaus Copernicus

b)

Tycho Brahe

c)

Johannes Kepler

d)

Robert Hooke

e)

Isaac Newton

32.

This historical figure lived between 1643 and 1727.

a)

Nicolaus Copernicus

b)

Tycho Brahe

c)

Johannes Kepler

d)

Robert Hooke

e)

Isaac Newton

33.

Which orbital mechanics historical figure was known for being the first to theorize that earth and other planets actually revolved about the sun?

a)

Nicolaus Copernicus

b)

Tycho Brahe

c)

Johannes Kepler

d)

Robert Hooke

e)

Isaac Newton

34.

Which orbital mechanics historical figure was known for still assuming the motion of orbits to be circular, even though his accurate measurements proved his assumption to not be strictly accurate?

a)

Nicolaus Copernicus

b)

Tycho Brahe

c)

Johannes Kepler

d)

Robert Hooke

e)

Isaac Newton

35.

Which orbital mechanics historical figure was known for gathering a lot of accurate planetary motion measurements AND for lecturing at the University of Copenhagen?

a)

Nicolaus Copernicus

b)

Tycho Brahe

c)

Johannes Kepler

d)

Robert Hooke

e)

Isaac Newton

36.

Which orbital mechanics historical figure was known for proposing that planetary orbits are elliptical and developing laws of orbital motion that are still used today?

a)

Nicolaus Copernicus

b)

Tycho Brahe

c)

Johannes Kepler

d)

Robert Hooke

e)

Isaac Newton

37.

Which orbital mechanics historical figure was known for being a member of the Royal Society and staunchly debating a younger astronomer on facts about orbital mechanics?

a)

Nicolaus Copernicus

b)

Tycho Brahe

c)

Johannes Kepler

d)

Robert Hooke

e)

Isaac Newton

38.

Which orbital mechanics historical figure was known for deducing the existence of an inverse square law attractive force by building on the work of a man who died 13 years before this astronomer was born.

a)

Nicolaus Copernicus

b)

Tycho Brahe

c)

Johannes Kepler

d)

Robert Hooke

e)

Isaac Newton

39.

Which orbital mechanics historical figure was known for writing the greatest scientific book ever written where he posits three laws that we still used today.

a)

Nicolaus Copernicus

b)

Tycho Brahe

c)

Johannes Kepler

d)

Robert Hooke

e)

Isaac Newton

40.

According to the information we have covered, what is the title of the book that is considered the greatest scientific book ever written.

(a)  

41.

Orbits are what shape?

(a)  

42.

LEOs...

a)

are close to earth

b)

have roughly 1.5 hour orbital periods

c)

are always highly elliptical

d)

have 2 revolutions per day

e)

have a minimum altitude of 40 km

43.

Satellites in GEO orbits...

a)

stay over one spot of the earth

b)

orbit at an altitude of 22, 000 miles where the orbital period equals 2 days

c)

have an ideal inclination of 10 degrees

d)

are in a ring around the earth, aka a belt

e)

have an orbital period of once a day

44.

Russian communications can't use GEO satellites because Russia is too far north. So instead they developed they put their communication satellites in to (a)   orbits

45.

This type of orbit passes over all of earth, gathering info about the entire planet.

(a)  

46.

This type of orbit is great for weather satellites.

(a)  

47.

This is what type of orbit?

a)

Moly

b)

Polar

c)

MEO

d)

HEO

e)

LEO

48.

Choose all of the TRUE statements.

a)

Grouping of satellites like our GPS system uses, are called a constellation and work together in various orbits because a single satellite is not enough to complete the mission

b)

MEO stands for Medium Earth Orbit and HEO stand for High Earth Orbit

c)

LEO stands for Low Earth Orbit and have a limited swath area

d)

Polar orbits have an inclination of 90 degrees

e)

The geostationary belt is a renewable resource since satellites are always dropping out of orbit.

49.

Select the named Keplerian elements from options below.

a)

Eccentricity

b)

Semi-minor Axis

c)

Timed Anomaly (AKA Epoch)

d)

Inclination

e)

Argument of Apogee

50.

Select the named Keplerian elements from options below.

a)

Argument of Perigee

b)

Semi-Major Axis

c)

True Anomaly

d)

RANN

e)

Concentricity

51.

What is the angle measured along the equatorial plane between a vector pointing to a fixed reference point in space and the point on the orbit where the orbital motion is from south to north across the equator?

(a)  

52.

What describes the orientation of the orbit within the orbital plane and is measured as the angle from the ascending node to the perigee point in the direction of the satellite’s motion?

(a)  

53.

What value is constantly changing as the satellite moves in its orbit, is measured as 0 degrees at perigee and 180 at apogee, and is the angle between the perigee point and the satellite's location?

(a)  

54.

This Keplerian element determines the northern and southern latitude limits from which the satellite orbits.

(a)  

55.

What kind of orbit does this image describe?

a)

Equatorial

b)

Polar

c)

HEO

d)

Moly

56.

What kind of orbit does this image describe?

a)

Equatorial

b)

Polar

c)

HEO

d)

Moly

57.

Select the image that best describes the differences in the eccentricity of orbits.

a)
b)
c)
d)
58.

Is this HEO Moly orbit a better example of the eccentricity of an orbit nearing 0 or nearing 1?

a)

0

b)

1

59.

Study this image. Which color has an inclination of 5 degrees?

a)

Yellow

b)

Red

c)

Purple

d)

Orange

60.

Study this image. What is the inclination of the purple orbit?

a)

5 degrees

b)

25 degrees

c)

45 degrees

d)

75 degrees

e)

90 degrees

61.

Of the options below, which is measured in degrees?

a)

Inclination

b)

True Anomaly

c)

Eccentricity

d)

Epoch

62.

Satellites will travel around Earth in elliptical paths with the center of Earth at one of the foci.

a)

Kepler's 1st Law

b)

Kepler's 2nd Law

c)

Kepler's 3rd Law

63.

A line drawn between earth and a satellite will sweep out equal areas during equal time periods anywhere along the orbit.

a)

Kepler's 1st Law

b)

Kepler's 2nd Law

c)

Kepler's 3rd Law

64.

 T2=4π2μ×a3T^2=\frac{4\pi^2}{\mu}\times a^3  



The period of an orbit (T) is related to its semi-major axis (a) by this equation.

a)

Kepler's 1st Law

b)

Kepler's 2nd Law

c)

Kepler's 3rd Law

65.

What are the two types of energy involved in calculating the transfer of a satellite from one orbit to a new orbit.

a)

Electromagnetic

b)

Potential

c)

Nuclear

d)

Kinetic

e)

Thermal

66.

 U=−GMmRU=-\frac{GMm}{R}  
What is this the equation used to calculate?

a)

Potential Energy

b)

Kinetic Energy

c)

Gravity Force

d)

Total Energy of an Orbit

67.

Which of the following are equal to the total energy of an orbit?

a)

 U+KU+K  

b)

 −GMmR+12mv2\frac{-GMm}{R}+\frac{1}{2}mv^2  

c)

 −GMm2R\frac{-GMm}{2R}  

d)

 GMmR2\frac{GMm}{R^2}  

68.

(a)   energy is energy that is stored within a system due to the position of the system.

69.

Kinetic energy is the energy of (a)   .

70.

Gravitational pull of earth provides (a)   energy.

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